Watch Reference
SPB121

Seiko Alpinist SPB121

Seiko · 2020 · automatic

$725USD · launch MSRP
⌀ 39.5 mm

Overview

Green-dial Alpinist, successor to the SARB017.

Specifications

SPB121
Case
Case diameter39.5 mm
Movement
Movementautomatic
Caliber6R35
Water resistance
Water resistance200 m
Details
LumeLumibrite
Crystalsapphire

Compare

Side-by-side · source-verified
Seiko Prospex SPB143$1,200 USDcompare →
Hamilton Khaki Field Mechanical H69439931$625 USDcompare →
Tissot PRX Powermatic 80 T137.407.11.041.00$850 USDcompare →

Where to buy

Retailer search links · availability varies
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Frequently asked questions

Is the Seiko Alpinist SPB121 automatic?

Yes, the Seiko Alpinist SPB121 is powered by an automatic (self-winding) movement, caliber 6R35.

Is the Seiko Alpinist SPB121 waterproof?

It is rated to 200 m (20 ATM) of water resistance. "Waterproof" is not an official watch rating; this depth rating describes its resistance to water pressure under the noted conditions.

What size is the Seiko Alpinist SPB121?

The Seiko Alpinist SPB121 has a case diameter of 39.5 mm.

How much does the Seiko Alpinist SPB121 cost?

The Seiko Alpinist SPB121 launched at a manufacturer's suggested retail price (MSRP) of $725 USD. Current market prices may differ — check the retailer links on this page for up-to-date availability.